15-Letter Words Matching M________T_____

There are 14 15-letter words that match M________T_____. 2 are common words, such as METHAMPHETAMINE and MICROELECTRONIC. A rarer one is MISCEGENATIONAL. In this set, I is the most frequent open letter (14 words). 0 words contain a doubled letter.

Full list 14

methamphetaminemicroelectronicmalpractitionermastoidectomiesmetropolitanatemetropolitanismmischaracterizemultifunctionalmelodramatisingmelodramatizingmethylxanthinesmicroelectrodesmicrogametocytemiscegenational

About this list

Words
14 (2 common words)
Common example
methamphetamine
Rare example
miscegenational
Doubled letters
0
Ending in S
3
Most frequent letter
I (14)

Questions

How many 15-letter words matching m________t_____ are there?

14. 2 of them are common words.

What is a common example?

METHAMPHETAMINE is among the common words in this set.